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marpel's avatar
marpel
Explorer
Jul 04, 2013

Reading tire sidewall info

Hello,

Hoping someone can help me with my question. I am trying to determine the manufacturers date of the tires on our trailer, and have visited a number of sites and done some searching for this info, without much luck. All the examples I have seen, show numbers on the sidewall that make sense, but I can't seem to relate those numbers to the ones on my tires.

Although I understand the common digits like ST205 etc, the other numbers are as follows:
10011 DOT 4N4F R3 190 (circle with E11 inside) 002059 DSZ-2100-4.

Although the trailer is three years old (with original tires), I can't find any 4 digit number that would suggest a month/year in 2009 or 2010 (unless it's hidden in the R3 190??).

Thanks in advance.

Marv
  • 2edgesword's avatar
    2edgesword
    Explorer
    Jul 05, 2013
    marpel wrote:
    Following the advice of the responders, I was finally able to locate the correct numbers (on the opposite side that I first examined).

    A little dismayed to discover the tires had a manufacture date that was almost one and a half years before I purchased the trailer - purchased in May 2010 - and the trailer was a 2011 model. Go figure.

    Thanks for the help.

    Marv


    My trailer is a 2012 model with a tire date code showing they were made in 2011.
  • HappyKayakers's avatar
    HappyKayakers
    Explorer
    Jul 04, 2013
    Mvander wrote:
    Roman Duck wrote:
    the date of manufacture is casted into one side of the sidewall. If its not on the outside it will be on the inside.first 2 digits are month second 2 digits are year. An example would be 0803// Aug. of 2003 .


    I could be wrong but I thought the first two digits were the week (01-52) and the last two were the year.


    First 2 digits are the week.
  • marpel's avatar
    marpel
    Explorer
    Jul 04, 2013
    Following the advice of the responders, I was finally able to locate the correct numbers (on the opposite side that I first examined).

    A little dismayed to discover the tires had a manufacture date that was almost one and a half years before I purchased the trailer - purchased in May 2010 - and the trailer was a 2011 model. Go figure.

    Thanks for the help.

    Marv
  • Mvander's avatar
    Mvander
    Explorer
    Jul 04, 2013
    Roman Duck wrote:
    the date of manufacture is casted into one side of the sidewall. If its not on the outside it will be on the inside.first 2 digits are month second 2 digits are year. An example would be 0803// Aug. of 2003 .


    I could be wrong but I thought the first two digits were the week (01-52) and the last two were the year.
  • Roman_Duck's avatar
    Roman_Duck
    Explorer
    Jul 04, 2013
    the date of manufacture is casted into one side of the sidewall. If its not on the outside it will be on the inside.first 2 digits are month second 2 digits are year. An example would be 0803// Aug. of 2003 .
  • 2edgesword's avatar
    2edgesword
    Explorer
    Jul 04, 2013
    I'm thinking the 190 means the 19th week of year 1990. What year is the trailer?
  • dadmomh's avatar
    dadmomh
    Explorer
    Jul 04, 2013
    Agree, try looking on the inside....not so easy, but get a flashlight. It's right up next to the rim. None of ours have ever been combined with other numbers, so don't know anything about that. Hang in there.
  • Francesca_Knowl's avatar
    Francesca_Knowl
    Explorer
    Jul 04, 2013
    It's not just the numbers/letters that count, the arrangement matters, too. There's a lot of optional info that can be stuck in there. But as far as I know, date code is ALWAYS the last four digits in that row (first two digits week, second two digits year)- or three digits if tires were made before the year 2000.

    I guess that's all by way of saying that the numbers you've posted don't make any more sense to me than they do to you!

    I've heard of a few cases where the date code was actually on the other side of the tire- have you tried looking there?

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